How does SHE do it? Sarah Jessica Parker and Olivia Munn overshadowed by buxom Christina Hendricks at their premiere

It is a film starring one of Hollywood's most stylish women, premièring in the middle of Fashion Week. So the New York screening of I Don't Know How She Does It was, unsurprisingly, a fashionable event tonight.

But the film's star Sarah Jessica Parker while stylish as ever, was overshadowed by her co-star Christina Hendricks' jaw-dropping look on the red carpet.

While Parker, 46, kept it simple in a black maxi, her gravity-defying co-star, 36, easily eclipsed her as she paraded her famous assets down the red carpet.

Red carpet nightmare: Sarah Jessica Parker is put in the shade by Mad Men star Christina Hendricks colourful display at the premiere of The Weinstein Company's I Don't Know How She Does It Premiere

Buxom beauty: Christina Hendricks is back to her glamorous self in a daring blush pink dress at the New York premiere

The buxom Mad Men star, as always, stole the spotlight from everyone in the room in a plunging satin dress.

The film follows Reddy as she struggles to keep her life in order while trying to be a model wife, mother, employee and staying on top of her game at work with tough competition from her male counterparts.

The romantic comedy had its premiere at the Cannes Film Festival in May.